David Quessenberry was drafted in the sixth round of the 2013 draft. / Thomas Campbell, USA TODAY Sports

by Tom Pelissero, USA TODAY Sports

by Tom Pelissero, USA TODAY Sports

Houston Texans tackle David Quessenberry is undergoing treatment after being diagnosed with lymphoma, the team announced Tuesday.

Quessenberry "experienced fatigue and a persistent cough over the past week and sought a medical evaluation to find the cause," the team said in a statement. "David was diagnosed and is presently being treated through M.D. Anderson Hospital."

His agency, Rep 1 Sports, said in a statement Quessenberry, 23, initially believed he had a chest cold. He was diagnosed last Tuesday with Non-Hodgkin T Lymphoblastic Lymphoma, one of large group of cancers impacting white blood cells that defend the body against infection.

Rick Smith, the Texans' general manager, said in a statement the team is "extremely confident in the care and treatment David will receive. He is a fighter and a courageous young man and we look forward to his full and complete recovery. We will continue to support him and his family and look forward to his return to the team."

The team said it will place Quessenberry on the non-football injury list.

A sixth-round draft pick out of San Jose State in 2013, Quessenberry spent his rookie season on injured reserve after suffering a broken foot in practice.